Fang Zei said:

I must echo what Hal and Tobar and Mr. Cobb have said. We need to wait and see how this all shakes out. For the moment, I'm still taking this news merely as confirmation that the new trilogy won't be an adaptation of any existing EU story. I'm sure I'll be proved wrong, but there ya go.

I agree.

Either way, we're not "losing" the now-Legacy stories. They'll still be as readable and as good as they were before, and some of them will still hold a place in each of our individual canons, and I can almost guarantee that we'll be seeing the best parts of those stories cropping up again in new stories.

Like the writers themselves said, it's not changing how they write their stories in any meaningful way, so I wouldn't even count it as a loss.

Maybe we'll even see some rewrites to fit whatever new canon there is, and, again, it's just too early to say anything concrete.